MicroSizers/Bit Char-G Plane

[MattPaintballer]

Hello. I am wanting to do two things. I want to make a plane out of my MicroSizer, and I want to make 2 of my MS s really good for racing. But the racing ones are kinda off topic. Okay, I know how to make the coil part of an actuator. But what is the deal with the neodmium magnet? How do I put that on, and once I figure that out, how do I hook up the actuator so it works? Will a high torque 4.2 motor be enough to fly the plane? How about 2? I was thinking of doing the following for my plane:

Li-Po cell
high torque 4.2
MOSFET upgrade

[Impreza]

Matt, have you seen the 21,000 rpm motor that comes as an add on for the new ZZ Monster Trucks? It is a bit bigger then the typical bit or ZZ motors so weight may be an issue? Would love to see a bit plane fly in person:) I always wondered about the limitations around Tx range.

[merc-blue]

yeah get a superslick motor that will od it .. your PCb will need to have been fetted. as for the actuators thast all easy bassicialy mount a coil above and one below the flap tehn cut a hole in teh flap and glue in the magnet after all that use some wire to make it sit stragiht then ur done

[MattPaintballer]

I would like to stay more Bit-related. Plus 42,000 RPMs is higher than any SuperSlick motor.

[betty.k]

4.2’s may rev higher but they won’t have much torque. the only bit plane i’ve seen was microamps’. it had a fetted pcb, lipo pack, and a micro flight motor (about the size of the zz monster’s motor). this plane was fairly slow so a 4.2 would be lucky if it created a breeze:8ball:

[micro_Amps]

Insert picture isnt working for some reason.
Have a look here….
http://www.ctie.monash.edu.au/hargrave/AEFA_12_03/image/p1030710_750.jpg
http://www.ctie.monash.edu.au/hargrave/AEFA_12_03/image/p1030558_750.jpg
http://www.ctie.monash.edu.au/hargrave/AEFA_12_03/image/p1030563_750.jpg
http://www.ctie.monash.edu.au/hargrave/sandringham_dec03/image/aaa_011203_p1030027_750.jpg
http://www.ctie.monash.edu.au/hargrave/sandringham_dec03/image/aaa_011203_p1030028_750.jpg
http://www.ctie.monash.edu.au/hargrave/sandringham_dec03/image/aaa_011203_p1030031_750.jpg
Both planes fly perfectly, both BCG controlled with KP00 motors and lipo cells. The balsa one will take off from ground, the ‘foamy’ needs to be hand launched.
BCG controlls (indoors) with the crip cap mod done will easily reach 50 meters, which is plenty for indoor flying.
These pics were taken and Doncaster (Victoria) indoor sports center, the AEFA fly there every 4th Saturday.

:)uA

Edited by – micro_Amps on 01 November 2004 08:55:04

[icebreaka]

WOW 😯 😯

I never knew you actually completed that.. WOW amazing work! 😀

[Impreza]

NICE u. what do your buttons on the controller control? (I see rudder with the left/right).

Edited by – Impreza on 01 November 2004 13:04:17

[micro_Amps]

Yes, rudder (obviously) is for left and right.
I use Forward for hi-speed (take-offs, climbing and turns) and I use Reverse for low speed, this speed is set to maintain flat level flight. A resistor is placed into the motor circuit to reduce motor power and the plane slows right down and just ‘hangs’ in the air flying at walking pace. The motor H-brigde is removed to allow 4 independant functions, or more depending on the RxTx combination.
Amazing to watch, and flying indoors on a basketball court is kinda strange, but lots of fun.
I’ll try and find some more pics to post as well. I was doing some plane mods for a couple of professors from Monash Uni, thats how those pics came to be hosted there. They saw the work I was doing on micro rc car mods and wanted to develop a micro plane, they supplied all the materials,I supplied the electronics and those photos were the result.
:)uA

EDIT: I have looked around the Monash site, I dont think there are any more pics of the BCG controlled planes.
Credit must be given where its due, Prof. John Bird, Dr. Russ Naughton and Peter Mather all contributed to the micro rc ‘Rats’ pitured. There are now several different versions flying.

Edited by – micro_Amps on 01 November 2004 21:25:58

[merc-blue]

hey the guys at monah which monash.. clayton? is it the profesoors for the computer systems/eletrical department? with there planes and thair UAV modules?

[micro_Amps]

Here’s another version, Peter Mather’s, inspired by my previous design.
http://www.ctie.monash.edu.au/hargrave/sandringham_feb-may04/image/sandy_apl04_p4059918_750.jpg

This one designed and built by Prof. Bird, electronics by uA
http://www.ctie.monash.edu.au/hargrave/sandringham_jul04/image/p1090753.jpg

Just to prove its BCG controlled, he has the controller in his other hand….
http://www.ctie.monash.edu.au/hargrave/sandringham_jul04/image/p1100110.jpg
And in flight….
http://www.ctie.monash.edu.au/hargrave/sandringham_jul04/image/p1100073.jpg

BCG motor ‘power’ geared….(from a different model, but its use IS possible, and very usable)
http://www.ctie.monash.edu.au/hargrave/sandringham_aug04/image/p1110277.jpg

uA

Edited by – micro_Amps on 01 November 2004 21:51:27

[micro_Amps]

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is it the profesoors for the computer systems/eletrical department? with there planes and thair UAV modules
Quote

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Yes it is Clayton, (does the word Hargrave mean anything) and these are some seriously smart men, and I mean SERIOUSLY SMART !!! They would knock your socks off with the stories they tell of the achievements they have made in their respective fields. Awesome, yet very modest.

[merc-blue]

yeah i did work expereince up there with them.. them guys are the reason i wanna do eletrical enginering.. i spent a week soldering PCBs and watching them work on a UAV module using microcontrolers and the old temperature (space being cold ground being warm) trick of flying around. i got to tell them what they were doing wrong (to do with eletrical interference issues) hehehe the good’ ol RC knowlage its was so obvious they probly knew just didnt think of it

[MattPaintballer]

I’m still confused on how to get the actuator thing to work… I know how to make one, just not how to attach it and stuff… Would a 3.8 have enough torque to fly the plane? For a plane, is torque more important than RPM, or vise versa? I have a MicroSizer, not a Bit, and I read that the boards are different on the car and in the Tx. Where would the cripple cap be located? I could also just get a clone and use one… That would be more logical because they are cheaper than MS’s. I really want to make a MSPlane!

[jamiekulhanek]

I used to build small indoor rubber powered planes called ‘Hangar Rats’ , the one i built actually won a few competitions, scoring worked by timing the plane from take off (ROG) till it landed. Sadly I decided to give it a go outdoors, it hit a thermal and was never seen again!

Weigh not including rubber band was approx 7.5 g, 50cm wingspan, 10 cm chord.

Due to the fact it needed to be rigid enough to withstand the force from a rubber band with 1000 turns, the fuselage was quite beefy, so with no rubber motor it could easily get away with having a lighter airframe.

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